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21ic问答首页 - TAG - 电路问题
  • 请教一个光耦电路问题

    电路如下图,如果光耦要导通,参考地应该是负电压吧,但是这个负电压是怎么来的呢?一直没想明白 [attach]2256912[/attach]

    电压 AC 电路问题 电路 光耦

    730浏览量 1回复量 关注量
  • 模拟电路的电流负反馈电路问题

    电流负反馈电路的输出电流一定是负载电流吗?请详细分析!

    模拟电路 电流 负反馈电路 电路问题 输出电流

    5574浏览量 5回复量 关注量
  • 请教加湿器雾化电路问题

    大家好: 最近在做加湿器的案子,老是烧MOS,不知道是什么原因?雾化片是1.7MHZ的,电压24V。以下原理图是不是有错?请帮忙分析一下原因, 如果哪位有更好的原理图,能否分享一下?谢谢! [img]data:image/png;base64,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[/img]

    技术交流 加湿器 电路问题 原理图 MOS 电压

    6086浏览量 15回复量 关注量
  • NTC温度检测电路 问题如图

    [table=98%] [tr][td]NTC温度检测电路 问题如图 [/td][/tr] [/table]

    NTC 温度检测电路 电路问题

    1573浏览量 7回复量 关注量